RBR may refer to:

• Red Bull Racing, a Formula One motor racing team
• Red Bank Regional High School, a regional high school (often called RBR) in Little Silver, New Jersey
• Richard Burns Rally, a video game
• Rietumu Banka - Riga, cycling team
• Rio Branco International Airport, in Brazil
• RBR-120 mm M90, a portable anti-tank rocket launcher

• 11α-Methoxyethinylestradiol
• 11β,17-Dihydroxypregn-4-ene-3,20-dione
• 11β,17-dihydroxypregn-4-ene-3,20-dione
• 11β,17-dihydroxyprogesterone
• 11β,17-Dihydroxyprogesterone
• 11β,17α-dihydroxypregn-4-ene-3,20-dione
• 11β,17α-Dihydroxypregn-4-ene-3,20-dione
• 11β,17α-Dihydroxyprogesterone
• 11β,17α-dihydroxyprogesterone
• 11β,21-Dihydroprogesterone
• 11β-HA4
• 11β-Hydroxy-4-androstenedione
• 11β-hydroxy-4-androstenedione
• 11β-Hydroxyandrost-4-ene-3,17-dione
• 11β-hydroxyandrost-4-ene-3,17-dione
• 11β-Hydroxyandrost-4-enedione
• 11β-hydroxyandrost-4-enedione
• 11β-Hydroxyandrostenedione
• 11β-hydroxyandrostenedione
• 11β-Hydroxyprogesterone
• 11β-hydroxyprogesterone
• 11β-Hydroxysteroid dehydrogenases
• 11β-hydroxysteroid dehydrogenase type 1
• 11β-MeO-17α-EE
• 11β-MeO-EE